Question

The radius of a sphere is $2r,$ then its volume will be

Answer 1

It is given that radius of sphere $=2r$

We know that volume of sphere $=\frac{4}{3}\pi R^3$

$=\frac{4}{3}\times \mathrm{\pi }\times {\left(2\mathrm{r}\right)}^3$

$=\frac{4\times 8r^3\mathrm{\pi }}{3}$

$=\frac{32\mathrm{\pi }{r}^3}{3}$

Hence$,$ the volume of sphere is $\frac{32\mathrm{\pi }{r}^3}{3}$